RenderMan Studio 3.0
Relighting - GUI for interactive, final render-quality relighting of your Maya scene. (RFM Pro Only, RenderMan Pro Server Required.)
Maya Fluids - Maya Fluid are now supported with full support for motion blur and the ability to produce depth maps, for Deep Shadows, etc.
RenderMan Controls - A new, consolidated user interface provides intuitive, one-window access to the RfM's basic settings and operations.
Co-Shader Support - RFM now supports tightly bound light/co-shader combiniations.
Slim Scripting - MTOR-style Slim scripting is now supported from RFM, via slimcmd and slimmsg.
TCL - RFM now supports Slim-side Tcl expressions